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Magnesium alloy sheet and preparing method thereof

A magnesium alloy plate and magnesium alloy technology, applied in the field of magnesium-based alloy manufacturing, can solve the problems of difficult forming, magnesium alloy flammability, and low yield, and achieve the effects of improving coating performance, excellent surface quality, and excellent mechanical properties

Inactive Publication Date: 2016-03-09
WUXI QINGYANG MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the hexagonal close-packed crystal structure of magnesium alloys, poor plasticity, difficulty in forming, and low yield, coupled with people's misunderstanding of the shortcomings of magnesium alloys such as flammability and corrosion resistance, the stamping of deformed magnesium alloy sheets has not been achieved on a large scale. application, research on wrought magnesium alloys and forming processes is still insufficient
Plates, profiles, and forgings of wrought magnesium alloys are mainly used in aviation, aerospace, and military fields, and have not been popularized in civilian fields.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A magnesium alloy thin plate, the mass percentage content of each component of the alloy includes: Zn7%, Cu1%, Ca6%, Ag0.1%, Ni0.2%, Nd0.1%, Pr0.05%, Al0. 01%, Y0.03%, Mn0.01%, La0.05%, and the balance is magnesium and unavoidable non-metallic inclusions.

[0025] The preparation method of the magnesium alloy sheet of the present invention comprises the following steps:

[0026] (1) Magnesium alloy is prepared raw material by weight percentage, is smelted in intermediate frequency vacuum furnace, and the melting temperature of magnesium alloy is cast under the temperature of 60 ℃ higher, and the obtained thickness is 10mm magnesium alloy thick plate; (2) magnesium alloy The cast ingot was heated to 630°C, and the heat preservation and homogenization annealing was carried out for 8 hours; (3) The thick magnesium alloy plate was extruded into a corrugated magnesium alloy plate through a die, and the thickness of the magnesium alloy plate after extrusion was 4mm. (4) Heat...

Embodiment 2

[0028] A magnesium alloy thin plate, the mass percentage content of each component of the alloy includes: Zn9%, Cu2%, Ca8%, Ag0.2%, Ni0.3%, Nd0.2%, Pr0.08%, Al0. 02%, Y0.04%, Mn0.02%, La0.06%, and the balance is magnesium and unavoidable non-metallic inclusions.

[0029] The preparation method of the magnesium alloy sheet of the present invention comprises the following steps:

[0030] (1) Magnesium alloy is prepared raw material by weight percentage, is smelted in intermediate frequency vacuum furnace, and the melting temperature of magnesium alloy is cast under the temperature of 60 ℃ higher, and the obtained thickness is 10mm magnesium alloy thick plate; (2) magnesium alloy The cast ingot was heated to 630°C, and the heat preservation and homogenization annealing was carried out for 8 hours; (3) The thick magnesium alloy plate was extruded into a corrugated magnesium alloy plate through a die, and the thickness of the magnesium alloy plate after extrusion was 4mm. (4) Heat...

Embodiment 3

[0032] A magnesium alloy thin plate, the mass percentage content of each component of the alloy includes: Zn8%, Cu1.5%, Ca7%, Ag0.15%, Ni0.25%, Nd0.15%, Pr0.06%, Al0.015%, Y0.035%, Mn0.015%, La0.055%, the balance is magnesium and unavoidable non-metallic inclusions.

[0033] The preparation method of the magnesium alloy sheet of the present invention comprises the following steps:

[0034] (1) Magnesium alloy is prepared raw material by weight percentage, is smelted in intermediate frequency vacuum furnace, and the melting temperature of magnesium alloy is cast under the temperature of 60 ℃ higher, and the obtained thickness is 10mm magnesium alloy thick plate; (2) magnesium alloy The cast ingot was heated to 630°C, and the heat preservation and homogenization annealing was carried out for 8 hours; (3) The thick magnesium alloy plate was extruded into a corrugated magnesium alloy plate through a die, and the thickness of the magnesium alloy plate after extrusion was 4mm. (4) ...

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PUM

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Abstract

A magnesium alloy sheet is characterized by comprising, by mass, 7-9% of Zn, 1-2% of Cu, 6-8% of Ca, 0.1-0.2% of Ag, 0.2-0.3% of Ni, 0.1-0.2% of Nd, 0.05-0.08% of Pr, 0.01-0.02% of Al, 0.03-0.04% of Y, 0.01-0.02% of Mn, 0.05-0.06% of La, and the balance magnesium and inevitable nonmetal inclusion. Meanwhile, a corresponding preparing method for the magnesium alloy sheet is provided. The finished magnesium alloy sheet is superior in mechanical performance, the tensile strength can reach more than 350 MPa, the ductility reaches 13%, the earing ratio is decreased to be below 1%, and the plating performance of the sheet is improved.

Description

technical field [0001] The invention relates to a magnesium alloy thin plate, which belongs to the field of magnesium-based alloy manufacturing. Background technique [0002] In the electronics industry, compared with the corresponding die-casting products, the mobile phone case produced by magnesium alloy sheet stamping technology has the advantages of thinner wall and higher productivity. Therefore, magnesium alloy stamping parts have good application prospects, and the development of magnesium alloy sheet stamping and related technologies has important theoretical significance and social benefits. However, due to the hexagonal close-packed crystal structure of magnesium alloys, poor plasticity, difficulty in forming, and low yield, coupled with people's misunderstanding of the shortcomings of magnesium alloys such as flammability and corrosion resistance, the stamping of deformed magnesium alloy sheets has not been achieved on a large scale. Application, research on wrou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/00C22C23/04C22F1/06
CPCC22C23/00C22C23/04C22F1/06
Inventor 唐靖岚
Owner WUXI QINGYANG MACHINERY MFG